Effective Field Goal Percentage Calculator

eFG% credits 3-pointers for being worth more than 2-pointers.

How the Math Works

The Effective Field Goal Percentage (eFG%) formula adjusts traditional field goal percentage by giving extra weight to three-point shots. Since three-pointers are worth one more point than two-pointers, the calculation adds half the number of made three-pointers (3PM) to the total made field goals (FGM). This means each three-pointer contributes 1.5 points toward the effective makes (FGM + 0.5 * 3PM), reflecting its true value. Dividing by total field goal attempts (FGA) and multiplying by 100 converts it to a percentage, providing a more accurate measure of shooting efficiency that accounts for shot value.

Practical Applications

To use this calculator, gather your field goal made (FGM), three-pointers made (3PM), and field goal attempts (FGA). Input these values into the formula: eFG% = (FGM + 0.5 * 3PM) / FGA * 100. For example, if a player scores 8 made shots including 3 three-pointers from 15 attempts, their eFG% = (8 + 0.5 * 3) / 15 * 100 = 60%. This metric is particularly useful for coaches evaluating offensive efficiency, analysts comparing players across different positions, and fantasy basketball enthusiasts assessing overall scoring impact beyond basic shooting percentages.

Day-to-Day Use

In daily life, understanding eFG% helps basketball fans better appreciate player performance during games and season discussions. When watching games, you can quickly assess whether a player's shooting is truly effective or just benefiting from volume. For personal improvement, players can track their own eFG% during practice or pickup games to see how their three-point shooting affects overall efficiency. This metric also aids in making informed betting decisions for sports wagering and helps fantasy league players identify undervalued contributors to their teams who may not have high traditional percentages but excel at maximizing point value through smart shot selection.

Worked example

9 FGM (3 threes), 18 FGA → 58.3%.

FAQ